ECS-F1AE225K Equivalent & Substitute Parts

Part Overview

The ECS-F1AE225K is a 2.2 µF conformal coated tantalum capacitor rated at 10 V with radial through-hole mounting. Manufactured by Panasonic Electronic Components as part of the EF series, this component is classified as obsolete. Due to its discontinued status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

ECS-F1AE225K

Panasonic Electronic ComponentsIn Stock: 1070ECS-F1AE225K Datasheet

Current PartRFQ

T350A225K010AS

KEMETIn Stock: 743T350A225K010AS Datasheet

DirectRFQ

TAP225K010SCS

KYOCERA AVXIn Stock: 1595TAP225K010SCS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECS-F1AE225K is determined by the following critical parameters:

• Capacitance value: 2.2 µF (exact match required)
• Voltage rating: 10 V (minimum requirement)
• Type: Conformal coated tantalum capacitor
• Mounting configuration: Through hole radial
• Package compatibility: Radial form factor

The substitute parts identified—T350A225K010AS (KEMET) and TAP225K010SCS (KYOCERA AVX)—meet these core electrical and mechanical requirements. Both substitutes maintain the same capacitance, voltage rating, and mounting type as the original component.

Parameter Comparison

Engineering Selection Recommendations

Both T350A225K010AS and TAP225K010SCS are active production components suitable for replacing the obsolete ECS-F1AE225K in applications requiring 2.2 µF, 10 V conformal coated tantalum capacitors with radial through-hole mounting.

TAP225K010SCS (KYOCERA AVX) is ROHS3 compliant, making it the preferred choice for designs subject to RoHS3 regulatory requirements. Both substitutes offer improved tolerance (±10% versus ±20%) and extended operating temperature ranges (-55°C ~ 125°C versus -55°C ~ 105°C) compared to the original component.

Physical dimensions differ between the original and substitutes. The ECS-F1AE225K measures 0.130" diameter with 0.217" maximum height, while both substitutes are larger at 0.177" diameter with heights of 7.00–7.10mm. PCB layout verification is necessary to confirm fit within available space constraints.

Frequently Asked Questions (FAQ)

Q: Can T350A225K010AS or TAP225K010SCS be used as direct replacements for ECS-F1AE225K?

A: Both parts meet the core electrical specifications (2.2 µF, 10 V, conformal coated tantalum, through-hole radial). However, physical dimensions differ. The substitutes are larger, requiring PCB layout verification to confirm mechanical fit.

Q: What is the difference in tolerance between the original and substitute parts?

A: The ECS-F1AE225K has ±20% tolerance, while both T350A225K010AS and TAP225K010SCS offer tighter ±10% tolerance. This represents improved capacitance accuracy in the substitutes.

Q: Are there RoHS compliance differences between the substitutes?

A: Yes. TAP225K010SCS is ROHS3 compliant, while T350A225K010AS is RoHS non-compliant. For designs requiring RoHS3 certification, TAP225K010SCS is the appropriate choice.

Q: How do the operating temperature ranges compare?

A: The original ECS-F1AE225K operates from -55°C to 105°C. Both substitutes extend the upper limit to 125°C, providing a wider operating window for high-temperature applications.

Q: What is the ESR specification, and why does it matter?

A: ESR (Equivalent Series Resistance) is specified as 13 Ohm for both substitutes but is not provided for the original part. Lower ESR generally indicates better high-frequency performance and reduced heat generation in switching applications.

Q: Do the lead spacing differences affect PCB compatibility?

A: Lead spacing is 0.098" (2.50mm) for both the original and TAP225K010SCS, but T350A225K010AS uses 0.100" (2.54mm) spacing. Verify PCB pad spacing before selecting T350A225K010AS to ensure proper fit.